This paper establishes an empirical formula to predict the strain amplitude effect. A viscoelastic constitutive model—the superposition of a hyperelastic model and a viscoelastic model—is constructed based on the laws of thermodynamics. The Mooney–Rivlin model and the Prony series are employed for uniaxial tension testing. The empirical formula is derived using a hysteresis loop; it obtains results that are in agreement with the experimental results of dynamic mechanical analysis (DMA). The empirical formula proposed in this paper has certain accuracy in predicting the dynamic modulus under different strain amplitudes.

中文翻译：

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应变幅度对氯丁橡胶粘弹性力学的影响

本文建立了经验公式来预测应变幅度效应。基于热力学定律，构造了粘弹性本构模型（超弹性模型和粘弹性模型的叠加）。Mooney-Rivlin模型和Prony系列用于单轴拉伸测试。经验公式是使用磁滞回线推导出的。它获得的结果与动态力学分析（DMA）的实验结果一致。本文提出的经验公式在不同应变幅度下的动态模量预测中具有一定的准确性。